Where all my sparkle-pokemon OCs live! Any species of pokemon can be any type and eevees are the most common.
POKEMON MYSTERY DUNGEON AU/HEADCANON-VERSE
Humans once walked the earth alongside pokemon, until a great evil wiped them and most pokemon out of existence.
It's been thousands of years and all in-game human heroes were brought over via time travel to prevent further disaster.
Humans can be brought over by other means too, and ghost-type pokemon with human pasts still remain.